Patents by Inventor Aparna Nath

Aparna Nath has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20230221515
    Abstract: The present invention relates to an optical fiber cable (100, 200, 300) comprising one or more optical fibers (102), one or more buffer tubes (104), a first layer (106), a sheath (108), one or more embedded strength members (110), a plurality of water swellable yarns (112), a ripcord (114), a plurality of bundles of optical fibers (202) and a unitube (304). In particular, the core encloses the one or more optical fibers (102) encapsulated by one or more layers. Moreover, the sheath (108) encapsulates the core. Furthermore, the sheath (108) comprises one or more embedded strength members (110) coated with a hydrophobic material. Further, thickness of the hydrophobic material coating is in a range of 20 microns to 100 microns. Additionally, contact angle between water and the one or more coated embedded strength member (110) is equal to or more than 100 degrees.
    Type: Application
    Filed: December 28, 2022
    Publication date: July 13, 2023
    Inventors: Navaneeth Biju, Aparna Nath
  • Patent number: 11693201
    Abstract: The present disclosure provides an intermittently bonded optical fibre ribbon. The intermittently bonded optical fibre ribbon includes a plurality of optical fibres. The plurality of optical fibres are bonded intermittently along the length by a plurality of bonded portions spaced apart by a plurality of un-bonded portions. The plurality of bonded portions is defined by a bonded length Li and the plurality of un-bonded portions is defined by an un-bonded length. In addition, at least one of the bonded length Li and the un-bonded length varies along a predefined length of adjacent optical fibres of the plurality of optical fibres.
    Type: Grant
    Filed: December 31, 2020
    Date of Patent: July 4, 2023
    Assignee: Sterlite Technologies Limited
    Inventors: Hemanth Kondapalli, Swapnil Sharma, Sharun Kuhar, Aparna Nath, Vikash Shukla, Bhaskar Sarkaar
  • Publication number: 20230185043
    Abstract: The present invention relates to an optical fibre cable (100) and the method of manufacturing thereof. In particular, the optical fibre cable (100) comprises a plurality of optical fibres (102), one or more layers (104) enveloping the plurality of optical fibres (102), a metallic layer (108) surrounding one or more layers (104), an outer sheath (112), and a separation layer (110) sandwiched between the metallic layer (108) and the outer sheath (112). Particularly, binding between the metallic layer (108) and the separation layer (110) is defined as metal binding and binding between the separation layer (110) and the outer sheath (112) is defined as sheath binding. Further, the metal binding is less than the sheath binding.
    Type: Application
    Filed: March 27, 2022
    Publication date: June 15, 2023
    Applicant: Sterlite Technologies Limited
    Inventors: Jyotiprakash Parida, Pramod Marru, Aparna Nath
  • Patent number: 11619787
    Abstract: A strength member (202, 302, 402) for use in an optical fiber cable (200, 300, 400) and manufacturing method thereof. The strength member comprises a plurality of reinforced yarns and one or more layers of epoxy resin over the plurality of reinforced yarns, wherein the one or more layers of epoxy resin have a modified surface such that a strength member friction coefficient is between 0.3 to 0.5. The strength member friction coefficient is measured between a surface of a sheath (204, 304, 404) of the optical fiber cable and the modified surface of the one or more layers of epoxy resin. The one or more layers of epoxy resin are blended with at least one of sand crystals and silicon dioxide powder, wherein concentration of the sand crystals or the silicon dioxide powder in the one or more layers of epoxy resin is 50 to 100 phr (Parts-per-Hundred-Resin).
    Type: Grant
    Filed: March 23, 2022
    Date of Patent: April 4, 2023
    Assignee: Sterlite Technologies Limited
    Inventors: Pramod Marru, Aparna Nath
  • Publication number: 20210271039
    Abstract: The present disclosure provides an intermittently bonded optical fibre ribbon. The intermittently bonded optical fibre ribbon includes a plurality of optical fibres. The plurality of optical fibres are bonded intermittently along the length by a plurality of bonded portions spaced apart by a plurality of un-bonded portions. The plurality of bonded portions is defined by a bonded length Li and the plurality of un-bonded portions is defined by an un-bonded length. In addition, at least one of the bonded length Li and the un-bonded length varies along a predefined length of adjacent optical fibres of the plurality of optical fibres.
    Type: Application
    Filed: December 31, 2020
    Publication date: September 2, 2021
    Inventors: Hemanth Kondapalli, Swapnil Sharma, Sharun Kuhar, Aparna Nath, Vikash Shukla, Bhaskar Sarkaar